ZF 0501.321.411 END SHIM for WG90 | OEM Genuine Part

Overview

The ZF 0501.321.411 END SHIM is a precision-engineered spacer component designed for the WG 90 and WG 94 series transmissions. This OEM genuine part, identified by SKU 0501.321.411, sits at the axial end of the transmission shaft assembly to control end-play and maintain proper gear mesh alignment. By providing a calibrated thickness between the shaft shoulder and the 4661101001: TRANSMISSION HOUSING, this shim ensures that rotating components remain within their specified tolerance range during operation. Without this critical shim, the entire gear train can shift out of position, leading to premature wear and operational inefficiency.

Symptoms of Failure

When the ZF 0501.321.411 END SHIM wears or becomes damaged, operators may notice specific failure indicators. Excessive axial shaft play is a primary symptom, often felt as a clunking sensation during gear engagement or load changes. Oil leaks from the output seal area can occur as the shaft moves beyond its intended position, compromising the seal lip. Gear slipping under load becomes more frequent because the misaligned gears lose proper tooth contact. Additionally, unusual whining or grinding noises from the transmission housing often accompany these issues, signaling that the shim has lost its original thickness or has fractured.

Technical Specifications

Compatibility

This END SHIM is primarily specified for the ZF WG 90 and WG 94 series transmissions. Based on its design and application, it is also compatible with the following ZF models that share the same shaft and housing architecture: WG 120, WG 150, WG 180, and WG 200. The part interfaces directly with the 4661301007: HOUSING and the 4661301093: TUBE assembly, and is secured in position using a 0631306174: CYLINDRICAL PIN to prevent rotation. Always verify the shim thickness requirement against your transmission’s service manual before installation.

Related Components